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Today I see a table with defined an integer like tinyint(2), and also others like int(4), int(6). MySql: Tinyint (2) vs tinyint(1) - what is the difference? Question I knew boolean in mysql as tinyint (1).I tend to prefer the tinyint 0/1 variant, since automatic type conversion in PHP gives me boolean values rather simply Over time I have used and seen several approaches: tinyint, varchar fields containing the values 0/1, varchar fields containing the strings '0'/'1' or 'true'/'false' and finally enum Fields containing the two options 'true'/'false'. Which MySQL data type to use for storing boolean values Question Since MySQL doesn't seem to have any 'boolean' data type, which data type do you 'abuse' for storing true/false information in MySQL? Especially in the context of writing and reading from/to a PHP script.BOOLEAN is just a synonym for TINYINT(1), and TRUE and FALSE are synonyms for 1 and 0.
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There is not really a BOOLEAN type in MySQL. This doesn't affect the database at all, since it's implemented in the application. This allows you to, in the application, use TRUE and FALSE rather than 1 and 0. Answer1 Some "front ends", with the "Use Booleans" option enabled, will treat all TINYINT(1) columns as Boolean, and vice versa.
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#Navicat for mysql boolean code
Answer2 I am going to take a different approach here and suggest that it is just as important for your fellow developers to understand your code as it is for the compiler/database to. Boolean vs tinyint(1) for boolean values in MySQL Question What column type is best to use in a MySQL database for boolean values? I use boolean but my colleague uses tinyint(1).Alternatively, try using a VM with barely enough resources allocated.) Also, differences between test queries are more discernible. (With a slower DB dev box, you can really feel the effects of bad code. Testbed: crummy consumer grade Pentium III box running OpenBSD and MySQL. There is a link at the bottom if you care to see the size and speed results. I plan on testing to see which is fastest and the space usage of the three on my blog. This datatype may be preferrable to using TINYINT or ENUM. It is no longer a synonym for TINYINT and is the only data type that allows you to store anything in less than one byte. MySQL versions after 5.0.3 change how the BIT datatype works. My research shows that BIT(1) is a synonym for TINYINT(1) for versions of MySQL before 5.0.3.